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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-13106) Ensure endpoint-only table coprocessors can be dynamically loaded
Date Thu, 26 Feb 2015 00:04:05 GMT
Andrew Purtell created HBASE-13106:

             Summary: Ensure endpoint-only table coprocessors can be dynamically loaded
                 Key: HBASE-13106
                 URL: https://issues.apache.org/jira/browse/HBASE-13106
             Project: HBase
          Issue Type: Test
            Reporter: Andrew Purtell
            Priority: Trivial
             Fix For: 2.0.0, 1.0.1, 1.1.0, 0.98.11

I came across the blog post http://www.3pillarglobal.com/insights/hbase-coprocessors and this
interesting bit:
This means that you can load both Observer and Endpoint Coprocessor statically using the following
Method of HTableDescriptor:
addCoprocessor(String className, org.apache.hadoop.fs.Path jarFilePath, int priority, Map<String,String>
kvs) throws IOException
In my case, the above method worked fine for Observer Coprocessor *but didn’t work for Endpoint
Coprocessor, causing the table to become unavailable and finally I had to restart my HBase*.
The same Endpoint Coprocessor worked fine when loaded statically. Use the above method for
Endpoint Coprocessor with caution.
To check this I wrote a test, attached. It passes, all seems ok. Guessing the complaint was
due to user error, probably jar placement/path issues.

Let's still commit the test.

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